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    IMAGE ENCODING/DECODING METHOD AND DEVICE ON BASIS OF WRAP-AROUND MOTION COMPENSATION, AND RECORDING MEDIUM STORING BITSTREAM
    1.
    发明公开
    IMAGE ENCODING/DECODING METHOD AND DEVICE ON BASIS OF WRAP-AROUND MOTION COMPENSATION, AND RECORDING MEDIUM STORING BITSTREAM 审中-公开

    公开(公告)号：US20240364915A1

    公开(公告)日：2024-10-31

    申请号：US18764976

    申请日：2024-07-05

    申请人： LG Electronics Inc.

    发明人： Hendry HENDRY ,  Seethal PALURI ,  Seung Hwan KIM

    IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

    CPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

    摘要： An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus comprises obtaining inter prediction information of a current block and wraparound information from a bitstream, and generating a prediction block of the current block based on the inter prediction information and the wraparound information. The wraparound information may comprise a first flag specifying whether wraparound motion compensation is enabled for a current picture including the current block. Based on the first flag having a predetermined value specifying that the wraparound motion compensation is enabled for the current picture, the prediction block may be generated by performing the wraparound motion compensation, and the wraparound motion compensation may be performed based on either boundaries of a current subpicture including the current block or boundaries of a reference picture of the current block, based on whether the current subpicture is independently coded or not.

    METHOD AND DEVICE FOR WEIGHTED PREDICTION FOR IMAGE/VIDEO CODING
    2.
    发明公开
    METHOD AND DEVICE FOR WEIGHTED PREDICTION FOR IMAGE/VIDEO CODING 审中-公开

    公开(公告)号：US20240305827A1

    公开(公告)日：2024-09-12

    申请号：US18659516

    申请日：2024-05-09

    申请人： LG Electronics Inc.

    发明人： Seethal PALURI ,  Hendry HENDRY ,  Jie ZHAO ,  Seunghwan KIM

    IPC分类号： H04N19/70 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51

    CPC分类号： H04N19/70 ,  H04N19/137 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/132

    摘要： According to the present document, a video decoding method performed by a video decoding device may comprise the steps of: parsing a first flag and a second flag from a bitstream, wherein the first flag is related to whether weighted prediction is applied to slices referring to a picture parameter set within the bitstream, and the second flag is related to whether information relating to the weighted prediction exists in a picture header within the bitstream; parsing a prediction weighted table syntax from the picture header on the basis of the first flag and the second flag; generating prediction samples for a current block in a current picture on the basis of syntax elements within the prediction weighted table syntax; generating residual samples on the basis of residual information obtained from the bitstream; and generating reconstructed samples on the basis of the prediction samples and the residual samples, wherein the second flag is parsed from the picture parameter set on the basis of the first flag.

    SLICE AND TILE CONFIGURATION FOR IMAGE/VIDEO CODING
    4.
    发明公开
    SLICE AND TILE CONFIGURATION FOR IMAGE/VIDEO CODING 审中-公开

    公开(公告)号：US20240214584A1

    公开(公告)日：2024-06-27

    申请号：US18594814

    申请日：2024-03-04

    申请人： LG ELECTRONICS INC.

    发明人： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

    IPC分类号： H04N19/174 ,  H04N19/132 ,  H04N19/159 ,  H04N19/70 ,  H04N19/91

    CPC分类号： H04N19/174 ,  H04N19/132 ,  H04N19/159 ,  H04N19/70 ,  H04N19/91

    摘要： A video decoding method performed by a video decoding apparatus, according to the present document, comprises: parsing number information about the number of slices of which heights are explicitly signaled in a tile of a current picture from a bitstream; parsing height information about the heights of slices of which heights are explicitly signaled from the bitstream based on the number information; deriving the number of slices in the tile based on the number information and the height information; and decoding the current picture based on the slices in the tile, wherein the height information includes the same number of syntax elements as a value of the number information, and based on the value of the number information being n, the heights of a 0th slice to an n−1th slice in the tile may be derived based on the syntax elements.

    METHOD AND DEVICE FOR CODING IMAGE/VIDEO ON BASIS OF PREDICTION WEIGHTED TABLE
    6.
    发明公开
    METHOD AND DEVICE FOR CODING IMAGE/VIDEO ON BASIS OF PREDICTION WEIGHTED TABLE 审中-公开

    公开(公告)号：US20240129510A1

    公开(公告)日：2024-04-18

    申请号：US18391365

    申请日：2023-12-20

    申请人： LG Electronics Inc.

    发明人： Seethal PALURI ,  Hendry HENDRY ,  Jie ZHAO ,  Seunghwan KIM

    IPC分类号： H04N19/46 ,  H04N19/137 ,  H04N19/174 ,  H04N19/70

    CPC分类号： H04N19/46 ,  H04N19/137 ,  H04N19/174 ,  H04N19/70

    摘要： A video decoding method by a video decoding apparatus includes: parsing, from a picture parameter set of a bitstream, a first flag related to whether a weighted prediction is applied to slices referring to the picture parameter set; parsing, from the picture parameter set, a second flag related to whether information about the weighted prediction is present in a picture header of the bitstream or is present in a slice header of the bitstream based on the first flag; parsing a prediction weighted table syntax from the picture header or the slice header based on the first flag and the second flag; generating prediction samples for the current block by performing weighted prediction for the current block in a current picture based on syntax elements in the prediction weighted table syntax; and generating reconstructed samples based on the prediction samples.

    IMAGE ENCODING/DECODING METHOD AND DEVICE BASED ON HYBRID NAL UNIT TYPE, AND RECORDING MEDIUM FOR STORING BITSTREAM
    7.
    发明公开
    IMAGE ENCODING/DECODING METHOD AND DEVICE BASED ON HYBRID NAL UNIT TYPE, AND RECORDING MEDIUM FOR STORING BITSTREAM 审中-公开

    公开(公告)号：US20240098291A1

    公开(公告)日：2024-03-21

    申请号：US18371232

    申请日：2023-09-21

    申请人： LG ELECTRONICS INC.

    发明人： Hendry HENDRY ,  Seung Hwan KIM

    IPC分类号： H04N19/46 ,  H04N19/169 ,  H04N19/174

    CPC分类号： H04N19/46 ,  H04N19/174 ,  H04N19/188

    摘要： An image encoding/decoding method and apparatus are provided. The image decoding method includes obtaining, from a bitstream, network abstraction layer (NAL) unit type information of at least one NAL unit including coded image data, determining at least one NAL unit type of one or more slices in the current picture based on the obtained NAL unit type information, and decoding the current picture based on the determined NAL unit type. The current picture is determined to be a random access skipped leading (RASL) picture, based on the determined NAL unit type including a RASL picture NAL unit type (RASL_NUT). When an intra random access point (IRAP) picture associated with the RASL picture is a first picture in decoding order, the RASL picture is decoded, based on the RASL picture including one or more slices having a random access decodable leading (RADL) picture NAL unit type (RADL_NUT).

    MEDIA FILE PROCESSING METHOD AND DEVICE
    10.
    发明公开
    MEDIA FILE PROCESSING METHOD AND DEVICE 审中-公开

    公开(公告)号：US20230362456A1

    公开(公告)日：2023-11-09

    申请号：US18027304

    申请日：2021-09-23

    申请人： LG ELECTRONICS INC.

    发明人： Hendry HENDRY

    IPC分类号： H04N21/81

    CPC分类号： H04N21/81

    摘要： A media file generation method according to the present document comprises the steps of: configuring sub-picture tracks; configuring a base track referring to at least one sub-picture track; and generating a media file including the sub-picture tracks and the base track, wherein the sub-picture tracks include a first sub-picture track and one or more second sub-picture tracks, the first sub-picture track includes one or more slices, when the one or more slices are not all slices of a sub-picture, all slices of the first sub-picture track are included in the same sub-picture as the sub-picture, and the base track referring to the first sub-picture track also refers to the one or more second sub-picture tracks including the remaining slices of the same sub-picture.